1 /* 2 * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @key headful 27 * @bug 8160421 8161902 28 * @summary Test to check OffScreenImageSource handles case where 29 * imageComplete(ImageConsumer.SINGLEFRAMEDONE) unregisters. 30 * @run main/othervm ImageConsumerUnregisterTest 31 */ 32 33 import java.io.ByteArrayOutputStream; 34 import java.io.PrintStream; 35 36 public class ImageConsumerUnregisterTest extends javax.swing.JFrame { 37 38 public static void main(String[] args) throws Exception { 39 40 final java.awt.Component component = new ImageConsumerUnregisterTest(); 41 42 // Redirect the System.err stream and verify there is no 43 // stacktrace printed 44 ByteArrayOutputStream rs = new ByteArrayOutputStream(); 45 PrintStream obj = System.err; 46 System.setErr(new PrintStream(rs)); 47 48 String str = ""; 49 50 try { 51 // Test call 52 component.getToolkit().createCustomCursor( 53 component.getGraphicsConfiguration().createCompatibleImage( 54 16, 16, java.awt.Transparency.BITMASK), 55 new java.awt.Point(0, 0), "Hidden"); 56 57 // Convert the redirected System.err contents to a string 58 str = rs.toString(); 59 } finally { 60 // Reset System.err 61 System.setErr(obj); 62 63 if (!str.isEmpty()) { 64 throw new RuntimeException("Invalid" 65 + " imageComplete(STATICIMAGEDONE) call"); 66 } 67 } 68 } 69 } 70